I have a 9mm Glock 34 (it is a G17 frame with slightly longer competition geared slide and barrel) for range and IDPA competition. 1 1/2 years ago when I bought it, 9mm practice ammo was scarce so I bought an Advantage Arms .22 G17 sized kit for it. I have probably shot 5000 rounds of .22 thru it. It is by no means a bullseye competition type gun in .22 (I have a Buckmark and a couple Ruger MarkII bull barrel guns for that, but it definitely has been nice for IDPA practice where I typically shoot at cardboard targets with an 8" zero zone at 5-20 yards.
It takes mere seconds and no tools to switch back and forth between the longer 9mm barrel/slide and the .22.
I have about 10,000 rounds of 9mm thru the gun and it simply works every d@mn time. It has been cleaned only a few times unlike my .22 bullseye guns that get cleaned between each match to keep the hair trigger smooth and light. Shooting from a rested position it still groups 2" or less at 25 yards. Once I started using a high/thumbs forward/weak hand rotated max forward type grip, the Glock felt incredible in my smaller hands. I now use this basic grip style with all my handguns and it now feels "natural" to me.... It provides great recoil control for faster follow up shots.
.22 conversion on my Glock 34 next to my old Ruger Mark II bullseye gun.
G34 with 9mm parts installed
IDPA gear
